Aaron’s right ear
Leviticus 8:23
8:23 Aaron’s right ear. The atoning blood was placed on the ear, the hand and the foot of God’s priests to designate, respectively, hearing and obeying God’s Word, doing God’s service, and walking in God’s will. Today, as a spiritual priesthood, we also should so hear, serve, and walk (I Peter 2:9) in the will of God.